William smith



W. SMITH.

WATER CLOSET.

(No ModeL) No. 492,947. Patented Mar. 7, 1893 ATTORNEY UNITED STATESPATENT OFFICE.

WILLIAM SMITH, OF TRENTON, NEW JERSEY, ASSIGNOR TO DALE & DAVIS,

' OF SAME PLACE.

WATER-CLOSET.

SPECIFICATION forming part of Letters Patent No. 492,947, dated March'7, 1893,

Application filed October 25, 1892. Serial No. 449,966. (No model.)

To all whom it may concern: I

Be it known that I, WILLIAM SMITH, a citizen of the United States,residing at Trenton, in the county of Mercer and State of New Jersey,have invented certain new and useful-Improvements in Water-Closets; andI do hereby declare the following to be afull, clear, and exactdescription of my said invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

My invention relates to water closets, and particularly to that class ofwater closets in which the contents of the bowl are discharged partiallyor Wholly by siphonic action.

In water closets in which the discharging of the contents of the bowl isdependentupon siphonic action it is found that if the descent of thewater through the down limb of the exit passage be too rapid, the waterwill become commingled with air, and the water lacking the requisitedensity, perfect siphonic action will not be produced, and the contentsof the bowl will be only partially discharged. In the efforts heretoforemade to overcome this difficulty, and produce an effective siphonicaction various devices have been resorted to, such as lengthening andcurving the down limb of the exit passage, as instanced in United StatesLetters Patent No.

376,311, or forming abrupt deflections therein whereby the down limb isgiven a zigzag form, as instanced in United States Letters PatentNo.423,182. But in lengthening and curving the discharge limb the closetis generally made bulky, cumbersome, and costly, and is uncertain inoperation unless molded to very exact and uniform measurements; whileclosets made with abrupt deflections in the down leg of the exit passagehave a practically uniform diameter throughout the exit passage,

eter of the down limb while afiording a uniform area of discharge, topreserve theintegrity of the descending column of water while retardingits flow.

I shall now proceed to describe my invention with reference to theaccompanying drawings, in which my improvement is shown as applied to anearthenware closet of the siphon jet pattern, and in which Figure 1shows a side elevation of a closet containing my improvement. Fig. 2shows a central vertical sectional view thereof from the front to theback of the closet. Fig. 3 shows a section of a portion of the down limbof the exit passage taken on the line ar -0c in Fig. 2; and Fig. 4.shows in full lines a horizontalcross section of the down limb on theline yy in Fig. 3, and in full and dotted lines a horizontal crosssection of the same on the line z-z in Fig. 3.

In the drawings A is the bowl of the closet.

Bis the up limb of the exit passage.

0 is the down limb or discharge portion thereof.

D is the passage through which water is conveyed from the supply pipe Fto the jet 1) so located at the lower end of the up limb as to direct astream of water through the center of said limb in the common and wellknown manner.

E is a passage leading from the upper end of the passage D, and conveyswater from the supply pipe F to the flushing rim a. The channel in thedown limb is long and narrow in cross section, as shown at c in Fig. 4,and

the diameters of the channel are changed several times throughout thelength of the down limb, the greater diameter of one section of thechannel being transverse or at right angles to the greater diameter of acontiguous section of the channel, as appears at c and d in Fig. 4, onediameter changing to the diameter of the next section by acurvedsurface, as indicated in Fig. 3. By the use of this construction of thedown limb the contents of the bowl are discharged in a comparativelysolid column of water which is constantly changing its form in itsdescent through the down limb of the exit passage by reason of the chainlike form of the passage,

sage of varying diameters and of equal dis- 1 charge area throughout itslength; substan- IO tially as shown and described.

2. A water closet having a siphon exit passage of relatively long andshort diameters, the long diameter of one section of the passage beingtransverse to the long diameters of the contiguous sections of thepassage; sub- I 5 stantially as shown and described.

WILLIAM SMITH.

Witnesses:

SAML. D. OLIPHANT, J12, A. B. HENDRICKSON.

